Bobbin-winder for sewing-machines



(No Model.)

0. E. RUSSELL. BOBBIN WINDER FOR SEWING MACHINES. No. 280,961. NPatented July 10, 1883.

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UNITED STATES PATENT OFFICE.

CHARLES E. RUSSELL, OF RAVENNA, OHIO.

BOBBlN-WINDER FOR SEWING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 280,961, dated July 10,1883.

7 Application filed March 21, 1883. (No model.)

To all whom it may concern..-

Be itknown that I, CEARLEs E. RUssnLL, of Ravenna, Portage county, Ohio,have invented a new and useful Improvement in Bobbin-Winders forSewing-Machines, of which the following is a specification.

In the drawings forming a part of this specification, Figure 1 is afront elevation. Fig. 2 is a section; and Figs. 3, 4, and 5 are views ofdetached parts on an enlarged scale.

The name f is attached to a sewing-machine table, 10, by screw 0 in suchposition that the circumference of friction-wheel b will be in contactwith the circumference of the balancewheel Z of the machine. Frame fsupports bobbin a, friction-wheel b, arm 8, spring cfland roller 0. Thehead of bobbin a is formed with a wedge-shaped slot, 6, in which the endof the thread is to be placed preparatory to winding the thread on thebobbin. The ends of the bobbin projecting beyond its heads are pointedor cone shaped in the usual form,

that the bobbin may turn in the sewing-ma.

chine shuttle but at the end'which enters the center of wheelb thebobbin is of a square or angular form between the cone-shaped point andthe head, to fit in an angular socket in the center of wheel I), inorder that bobbin a may be rotated by the wheel.

The spool 11 on the sewing-machine arm g holds the thread. The end ofthe thread is first brought from the spool and passed through openings hin arm .9, and then through one of the springs 12 in the swinging bar mon arm s, and down to bobbin a, where it .is to be fastened by insertingit in slot e in the bobbinhead. The end of the thread may be placed inslot e, while the bobbin is out of the ma chine, if desired. Sufficienttension is produced by the thread passing through several openings h inarm 8. Bar at is .kept from slipping on arm 8 toward bobbin a by acollar, :r, and is suitably weighted at its lower end by weight at tokeep it upright when not turned by the winding of the inlayers on thebobbin. Arm 8 is bent upward at its outer end to decrease the tendencyof the tension of the thread to produce too great vibration of bar m.

Spring 0 is provided at its upper end with aroller, c,which presses onthe layers of thread on the bobbin, and thus aids in causing the or toturn on arm 8 and keep the thread between the bar and bobbin at rightangles to the latter, or nearly so. Dotted lines in Fig. 1 show thepositions of bar m when the thread is winding near the ends of, bobbina. In place of bar m, an upright spring that would move easily from sideto side, similar to the motion of bar m, might be used on arm 8; but thebar is deemed preferable. Arm 8 isjointed at o, and has a sleeve, on,which may be drawn tightly over the joint to hold the arm firmly inposition when winding the thread.

When the bobbin-winder is not in use, sleeve a may be moved back to theposition shown in Fig. 2, and then the outer part of arm .9 may beturned up to get it out of the way. Bar m may also be removed by slidingit off over the end of the arm.

The shaft 0, to which wheel I) is attached, rotates in sleeve a. Byloosening set-screw 0 which holds the sleeve in position, the sleeve maybe drawn back with wheel b away from bobbin a when it is desired toremove or replace the bobbin.

I claim as my invention- 1. The bobbin a, formed with a wedge-shapedslot, E, in its head, extending to or nearly to its spindle,substantially as described.

2. In a bobbin-winder for sewing-machines,

the vibrating bar in, having guide-slots, in combination with arm 8 andthe bobbin, the bar extending above and below the arm, and its lowerpart provided with a counter-balance, substantially as described.

, 3. The arm 8, bent upward at its outer end and provided withguide-slots and the bobbin, in combination with vibrating bar an,arranged vertically on the arm and adapted to guide the thread to thebobbin, substantially as described.

CHAS. E. RUSSELL.

YVitnesses:

BRAnFonn HOWLAND, .....HA RY L. BEATTY.

